Thanks for your input. I read a lot of reviews on the DeathAdder and it seems to die within a few months in many cases (typical razer "quality"), and out of the 4 different razer mice I have had, I did not like one of them. I think Xai is a little out of my price range ($90-$100).
Habu is in collaboration with Razer, so I am suspicious of it. How is the build quality in your opinion?
Out of the dozens of mice I have tried, the microsoft ones had the best tracking despite low dpi. I don't know why they can't just update the intellipoint with a more sensitive sensor, or why every company has to slap on additional buttons/"features" instead of making a quality 3 button mouse with excellent tracking and build quality.